Saul was afraid of David, because the LORD was with David but had left Saul.
After reading the story of David and Goliath in chapter 17 of 1 Samuel, I found King Saul strangely against the small hero. David had become quite popular and Saul was jealous. When an evil spirit came into the picture, Saul threw a spear at David twice.
It seemed David was invincible. He’d killed a giant, tens of thousands of men, and eluded King Saul’s spear. But did Saul have a right to be afraid?
David hadn’t done anything to harm or to even threaten King Saul. David stood up for his people and the king. What brought trouble on him was the fact that Saul wasn’t seeing what was before him. God had sent David to help out Saul and his army, but Saul saw him as a threat.
When you find yourself in trouble and you’re pretty sure you haven’t done anything wrong, ask God a few questions. Find out if you’re being seen as a threat. Find out if you’ve inadvertently made someone jealous. Find out if someone set you up to fail, but your success made them angrier.
David wouldn’t harm King Saul even though the king tried to kill David. If we leave the confusing retribution question to God, He’ll take care of it for us. God sees behind the scenes and looks at the hearts of men. If we’re careful to withdraw our judgment, but only obey God, we’ll see more successes come our way.